<!DOCTYPE html>
<html class=reftest-wait>
<title>View transitions: css tags generate pseudo elements in paint order</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:vmpstr@chromium.org">
<link rel="match" href="css-tags-paint-order-with-entry-ref.html">
<meta name="fuzzy" content="maxDifference=0-120; totalPixels=0-300">

<script src="/common/reftest-wait.js"></script>
<style>
div { contain: paint; }
#one {
  background: green;
  width: 100px;
  height: 100px;
  position: relative;
  z-index: 1;
  view-transition-name: one;
}
#two {
  background: yellow;
  width: 100px;
  height: 100px;
  view-transition-name: two;
}
#three {
  background: blue;
  width: 100px;
  height: 100px;
  view-transition-name: three;
}
#four {
  position: absolute;
  background: lightgreen;
  width: 100px;
  height: 100px;
  top: 50px;
  left: 275px;
  view-transition-name: four;
}

.hidden {
  background: pink;
  width: 10px;
  height: 10px;
  view-transition-name: hidden;
}

html::view-transition-group(hidden) { animation-duration: 300s; }
html::view-transition-image-pair(hidden) { animation: unset; opacity: 0; }

html::view-transition-group(one) {
  animation: unset;
  transform: unset;
  position: absolute;
  top: 50px;
  left: 50px;
}
html::view-transition-group(two) {
  animation: unset;
  transform: unset;
  position: absolute;
  top: 50px;
  left: 125px;
}
html::view-transition-group(three) {
  animation: unset;
  transform: unset;
  position: absolute;
  top: 50px;
  left: 200px;
}
html::view-transition-new(four) {
  animation: unset;
  opacity: 1;
}

html::view-transition-new(one),
html::view-transition-new(two),
html::view-transition-new(three) { animation: unset; opacity: 0; }

html::view-transition-old(one),
html::view-transition-old(two),
html::view-transition-old(three) { animation: unset; opacity: 1; }

html::view-transition-group(root) { animation: unset; opacity: 0; }
html::view-transition { background: lightpink; }

</style>

<div id=one></div>
<div id=two></div>
<div id=three></div>

<div id=hidden class=hidden></div>

<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");

async function runTest() {
  document.startViewTransition(() => {
    const f = document.createElement("div");
    f.id = "four";
    document.body.appendChild(f);

    requestAnimationFrame(() => requestAnimationFrame(takeScreenshot));
  });
}
onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>

